AT_devic和esp8266初始化后我怎样随时查看是否连接WiFi成功

发布于 2021-04-07 21:30:17 浏览：1689 订阅该版

mii 2021-04-07

这家伙很懒，什么也没写！

HVDC_5710 2021-04-08

这家伙很懒，什么也没写！

mii 2021-04-08

这家伙很懒，什么也没写！

网卡只要注册成功了，就可以获取到以下状态
```
/* whether the network interface device is 'up' (set by the network interface driver or application) */
#define NETDEV_FLAG_UP                 0x01U
/* if set, the network interface device has broadcast capability, only supported in the 'lwIP' stack */
#define NETDEV_FLAG_BROADCAST          0x02U
/* if set, the network interface device has an active link (set by the network interface driver) */
#define NETDEV_FLAG_LINK_UP            0x04U
/* if set, the network interface device is an ethernet device using ARP, only supported in the 'lwIP' stack */
#define NETDEV_FLAG_ETHARP             0x08U
/* if set, the network interface device is an ethernet device, only supported in the 'lwIP' stack */
#define NETDEV_FLAG_ETHERNET           0x10U
/* if set, the network interface device has IGMP capability, only supported in the 'lwIP' stack */
#define NETDEV_FLAG_IGMP               0x20U
/* if set, the network interface device has MLD6 capability, only supported in the 'lwIP' stack */
#define NETDEV_FLAG_MLD6               0x40U
/* if set, the network interface device connected to internet successfully (set by the network interface driver) */
#define NETDEV_FLAG_INTERNET_UP        0x80U
/* if set, the network interface device has DHCP capability (set by the network interface device driver or application) */
#define NETDEV_FLAG_DHCP               0x100U

```
其中一个状态实例如下：
```
    //等待网卡
    do{

netdev = netdev_get_first_by_flags(NETDEV_FLAG_LINK_UP);

//    LOG_D("Waiting netdev Link_up......");

rt_thread_delay(1000);

}
```